Type-writer.



. JLB.v PIGKBTT. TYPE WRITER. I I APPLGATIQN IILED 00T. l2, 1911.1,037,98 1. Patented sept, 10, 1912.

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J. B. PIGKETT;

TYPE WRTER.

APPLIGATION FILED 00T.12,.1911.

1,037,981. Patented Sept. 10, 1912.

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GIB. Hdez@ TZV @vi/Mmmm J., B.' PIGKETT.`

TYPE WRITER.

APPLIGATION FILED oGT.12,1911.

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41,037,981." i Patented sepnrlo, 191g. Y

*UmTED sTATEs PATENT OFFICE i JOHN B. PICKETT, or GRAND RAPIDS,MICHIGAN, AssIGNoR or oNE-FoiiRTH To ERNEST M. v IioMAN, ONE-EIGHTH ToJOHN W. I'FEIFLER, AND oivIa-Iaiciirrii To sERENUs D. KETGHUM, ALL orEDMORE, MICHIGAN. l

A'IYrE warfare Specication of `lietters Patent.

Application filed October 12, 1911. Serial No. 654,270.

To all whom it may concern:

Be it known that I, JOHN B. PIGKETT,

citizen of the United States, residing at' new and useful Improvementsin Type- Viriters, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to typewrit-ing machines and has for an object togenerally simplify and reduce the cost of manufacture of devices of thischaracter, the present invention being formed .of approximately 130parts iny contrast to the 3,000 or more parts forming theordinarytypewriting machines now in general use.

A second object 'of the invention is to provide a device of thischaracter having novel type carrying armswhich preferably in nor malposition bear forcibly upon an ink pad, and in operative position beardirectly upon the paper -witlfout an intervening ribbon usual in devicesof this character.

Vith the above objects in View the invention consists in certain noveldetails of construction andcombination of parts herein-` after fullydescribed and claimed, it vbeing understood that variousmodificationsmay be made in the minor details of construction withinthe scope of theappended claims.

ln the accompanying drawings forming part of this specification :#Figure1 is a side elevation ofthe typewriting machine. Fig. 2 is a verticallongitudinaly sectional view through the machine. Fig. 3 is ai'horizontal llongitudinal sectional view taken on the 'line Referring nowto the drawings in which l like characters of reference designatesimilar parts, the typewriting machine is shown to comprise a hollowopen front base or frame formed. of a bottom Wall 10, from the sideedges of which rise side walls 11, land from the rear edge of whichrises an arcuate rear Patented sept. 1o., 1912.

wall 12, these Walls being connected at their i top edges by a top wall13.

Arranged within the casing is an are frame llt, the same conforming tothecurvature of the rear wall andterminating short of the top wall in anoutstanding flange 15 whichis provided with sp'aced'slots 16. Pivotallysecured in the slots are a plurality of substantiallyangle levers 17,these levers being ,all of approximately the same length. One leg ofveach lever extends downwardly `along the inner periphery of the 'arcframe. and the opposite leg extends through and projects slightly beyondthe related slot i6. f

Any preferred means of pivotally mounting the levers may be employed theconnection being in the present instance made by a wire 18 passedthrough suitable registering openings formed in the lever legs and arcframe. 1

Pivot-ally connected-to the lower end of each depending lever leg is atype carrying arm 19, the same being equipped at its eX- t-remit-y withspaced type 20. An arcuate inkv pad 21 is IiXed at its opposite ends to.the sides of the frame, and the type are made to bear forcibly uponthispad through .ther

instrumentality of elbow. joint-s 21 at the meetings of the levers 17and type carrying cured to the side frame, this guide bar being formedfrom an arcuate bar having its lower edge slit as shown at 23 to receivethe type carrying arms, the latter bearing against the innery walls of tie slits and being guided thereby in their movement whenrocked throughthe instrumentality of the levers17 as will be presently described. Itwill be noted, and this feature lis of importance,

that the path of the type from restto printingA position is a' peculiarcurve as. shown in dotted lines in Fig. 2. This path enables the typeafter printing to rise vertically from the paper, thereby avoidingsmearing. The anglelevers and the type carrying arms are shaped andproportioned to attain this end.

The operating keys are Xarranged in three concentric rows,`and eachcomprises a head 24, and a stem 25, the stems' of the middle row of ke sare straight and bear with their lower en s againstI the projecting endsof their related levers 17. The stems of the so i, arms 19. A guide bar22 is terminally seinner and outermost row of keys. are formed at anangle as :shown at 26, andabear with their extremity against theprojecting `ends of the related levers 17. Upondepression of anypaiticularkey, the related lever-17 is rocked on its pivot, and therelated type carrying arm moved forwardly through an arc. The typecarried by the arm'is impinged against the paper on the platen duringdepressionhof the key. Upon release of the key, by virtue ofthe majo-rport-ion of the rel-ated lever 17 being disposed below the pivot of thelever, the lever will 'be returned "bygravity to its initial position,thereby 34 of a compression roller 35' between which returning thekeyand the type carrying arm to their initial position.

The carriage comprises a bottom plate 27 from the. opposite corners ofwhich rise postsI 28, the posts on' eacli-. `ide of the plate beingconnected by cross bars 29. Aliiiing slots 30 are formed in the crossbars and receive the gudgeons 31 of a platen 32. A second pair ofalining sl-ots 33 are formed in the cross bars and receive the gudgeonsand the platen the slieet'of paper 36 is engaged, an upwardly curvingguide 37 being- 'secured to the bottom plate and terminating adjacent tothe meetings of the platen and compression roller to guide the paper inits p-osition between the platen` and compression roller. This guidefurthermore forms a stop for limiting sliding 'movement of the platen inits' slots 3l, the purpose of which movement will presently appear.Terminally secured to the cross bars 29 and to the ends of thecompression roller gudgeons are heli- "cal springs" 38, these springsserving to hold the compression roller in snug engagement with'theplaten, and` to hold boththecomression roller and laten gudgeons at theorward ends of their slots. By manually forcing the platen rearwardlyuntil the gudofeonsof the platen engage the rear walls of tlieir slots,the platen will be moved into .such a position that the i'earmost orcapital letter types on the type carrying arms will be brought intoengagement with the paper on the plates upon depression of the operatingkeys. It will thus be noted that the shift.

,key of an ordinary typewriter is dispensed with.

Keyed to the platen gudgedns are ratchet.

free end with an upwardly bowed upon the bottom wall of theA frame andsupporting thecarriage for sliding movementon thel frame. A rod 43 isfixed to the base .pla-te of the carriage and wo-rks in a groove 44formed in the base of the machine, this rod directinfr the slidingmovement of the carriage. The Aescapeineiit for actuating the carriage,consists of a straight rack bar 45 which is xedrto the base plate of thecarriagev and arranged to one side of the rack `bar is a leaf spring 46,this leaf spring"be` ing secured at one end to the bot-tom wall of theframe, and being formed adjacent to its ortion 47 the tip `endof whichengages with the teeth of the rack. Centrally and pivotally Ymountedupon a series off preferably four posts 48 are a series of four tiltinglevers49-4 The levers are arranged in the form of a seniicircle in therear of the arc frame 14. An arc rod 50 is arranged to underlie the.projecting ends of the angle levers 17, and

is provided with radial outwardly extending fingers 51, preferably threein` number as shown iu Fig. 3. Two of the'ingers are arranged at theends of the rod and the third centrally disposed upon the rod. Theterminal fingers of the rod are provided with upstanding stems 52 whichextend outwardly through openings in the frame top wall and .areconnected by a cross strip 53 which forms a letter and word spacing key,One

lo-f the levers 49 bears terminally against the bowed portion of theleaf spring. 46 and it is now clear that. on. depression of thespacindkev, that the rod 50 lwill be de? presse thereby depressing thesaid lever 48, and flattening,out the' bowed portion of theleafspringthereby advancing the rack and carriage onestep. Uponrelease of theAspacing key, thebalaiiced levers 49 will all return to their normalpositions, after having been depressed bythe ,rod 50 upon itsdepression, and will elevate the rod 50 thereby permitting the bowedportion o f the spring to return t-o its normalposition and operativelyengage tlie rack for advancing the'latter one step upon the neiztdepression of the spacing key.

For releasing the 'esc-a ement so that the carriage may be ret-urne toits initial position after having traveled to its limit of movement invone direction, a substantially Z-shfiped key 54 is lslidingly fitted inan 11p-standing eye 55 arranged upon the frame bottom wall, and bearswith its extremity against the underneath face of the spring bowedport-ion, the top edge of said extrenr ity being inclined upwardly asshown at 56 and forming a cani surface upon which, when the key ismanually pushed in, the bowed portion will ride upwardly and the springbe released from the rack. -In this position of the parts, the carriagemaybe manually shoved back to its initial position.

What is claimed iszl.' ln a ypewriting machine, the'cOInbi-V-` nationwith a,` frame, of e plurality o-f'lteys, angle levers, a supporting`frame' for. said levers, .each angle lever comprisinga sub--ystantially horizontal arm and a vertiealleg said substantiallyhorizontal arm pivotally connected to saidv supporting .frameintermediate its ends, typecarrying-y bars `pivotally connected tothelower ends of the ver# tical legs of said angle levers, and guiding`bar, said type-carrying `bars, passing through said guiding bar.,

directly to the 'opposite'end of said levers,y

and `guiding means for said type bars Y 3. In a ypewriting machine, thefconibif nationwith a stationary support, of a Alever projecting onopposite sides 'of and being pivotally. connected to saidsupport, saidlever provided with @downwardly extending leg, a verticely slidableoperating vkey pivotally connect-e at its lower end to Jche upper outerproject-ing end `of saidl lever,

I' a typeearrying lber pivotally connected a-t ils inner end directly toche lower endfoi'- 'the legof said lever.,v

of its arm, a key `directly 'connected to the" arm et' one sideof` thesupport, andytype-l carrying means movably connected tov vthe leg ofsaid lever.y

5. Inajtypevvriing machine, the combi# ntionof a main frame, a pluralityofkeys,v a ISupportingframe having a plurality 4of' notches formed uponchetop edgexthereof, -angle -levers pivot-ally mounted in saidnotcliesof the'supporting:frame and ha V` 'ing depending! .port-ions, afguidemember `v.Carried by saidina'in frame, operating keys -.p1vo;ed directlyto the outer ends of the levers, and vQfp-carry]ng 'inea-ns movable.

uponsaid guidingelement and'dlrectly conneared-near theirfinilerv endsto thelower ends of the levers.

In testinionywhereof Phereunto affix signature 1n-'presence `oftwojwtnesses.. y

H. H, DQLANGEREIS, i' M. SHOER.

Copies of this Apatient may be` ob'tanedfor ve'eents each, byaddressing* the Cpmmissionefo'f Patents, Washington, 1). C,

.435 nation Wit-h 'fay support, of aleverprovided

